Flight OddsUA1620 ORD → SEA
United Airlines · Chicago, IL to Seattle, WA · 168 flights observed, 2025-07-01 to 2025-12-17 · 1,721 mi
UA1620 covers more than one route in the data window — the stats below are for ORD → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
86%
Median delay
-11 min
90th percentile
+24 min
Cancellation rate
0%
How often is UA1620 on time?
Across 168 flights on ORD → SEA from 2025-07-01 to 2025-12-17, UA1620 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +24 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 144 | 86% |
| 16-30 min | 11 | 7% |
| 31-60 min | 5 | 3% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 4 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -6 min |
| 2025-08 | 31 | 90% | -11 min |
| 2025-09 | 30 | 93% | -19 min |
| 2025-10 | 31 | 94% | -13 min |
| 2025-11 | 28 | 82% | +3 min |
| 2025-12 | 16 | 56% | +65 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 83% |
| Tue | 25 | 92% |
| Wed | 25 | 80% |
| Thu | 24 | 96% |
| Fri | 23 | 91% |
| Sat | 22 | 77% |
| Sun | 24 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…